CN101291179A - Customer signal transmission method in optical transmitting network and related equipment - Google Patents

Customer signal transmission method in optical transmitting network and related equipment Download PDF

Info

Publication number
CN101291179A
CN101291179A CN 200710090273 CN200710090273A CN101291179A CN 101291179 A CN101291179 A CN 101291179A CN 200710090273 CN200710090273 CN 200710090273 CN 200710090273 A CN200710090273 A CN 200710090273A CN 101291179 A CN101291179 A CN 101291179A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
unit
opuk
client signal
tributary
number
Prior art date
Application number
CN 200710090273
Other languages
Chinese (zh)
Other versions
CN101291179B (en )
Inventor
吴秋游
董立民
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605Fixed allocated frame structures
    • H04J3/1652Optical Transport Network [OTN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605Fixed allocated frame structures
    • H04J3/1652Optical Transport Network [OTN]
    • H04J3/1658Optical Transport Network [OTN] carrying packets or ATM cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605Fixed allocated frame structures
    • H04J3/1652Optical Transport Network [OTN]
    • H04J3/1664Optical Transport Network [OTN] carrying hybrid payloads, e.g. different types of packets or carrying frames and packets in the paylaod

Abstract

The embodiment of the invention provides a client signal transmission method in an optical transport network and relevant equipment, wherein the embodiment of the method comprises the steps of: obtaining the client signal and mapping the client signal to a tributary unit which is preset in the payload area of the optical-channel payload unit OPUk; respectively marking the corresponding tributary unit of each client signal; marking the tributary unit number of the payload area of the OPUk; marking the type of the mapped client signal in the tributary unit; and sending the optical-channel data unit ODUk including OPUk to the OTN network. The embodiment of the invention is capable of establishing transmission channels suitable for client signal rate, thereby improving the utilization ratio of the transmission channels in the process of the CBR transparent transmission and strengthening the flexible adaptability of the OTN equipment to the access service.

Description

一种光传送网中客户信号传送方法及相关设备 An optical transport network client signal transmitting method and related apparatus

技术领域 FIELD

本发明涉及光通信技术,尤其是光传送网中客户信号的映射传送方法。 The present invention relates to optical communication technology, in particular mapping transmission method OTN client signal. 背景技术 Background technique

随着社会经济的发展,人们对信息的需求急剧增加。 With the social and economic development, the demand for information has increased dramatically. 光纤约30THz的巨大潜在带宽容量,使光纤通信成为支撑通信业务量增长最重要的技术之一。 Fiber huge potential bandwidth capacity of about 30THz of the optical fiber communication has become one of the most important technical support communications traffic growth. 国际电信联盟-电信标准部(ITU-T, International Telecommunication Union -Telecommunication Standardization Sector)制定的光传送网标准体制为构建完善的光传输基础网络奠定了基础。 International Telecommunication Union - Telecommunication Standardization Sector to develop (ITU-T, International Telecommunication Union -Telecommunication Standardization Sector) OTN standard system laid the foundation for building a sound basis for optical transmission network.

在光传送网(OTN, Optical Transport Network)中,将客户信号映射包封处理以便在OTN中传送的技术称为数字包封技术,其包括诸如光传输模块(OTU, Optical Channel Transport Unit)的映射、复用结构,光通道数据单元(ODUk , Optical Channel Data Unit-k)的时分复用以及客户信号的映射等技 In the optical transport network (OTN, Optical Transport Network), the processing technology encapsulated client signal is mapped for transmission in the OTN called digital encapsulation techniques, such as a map comprising a light transmission module (OTU, Optical Channel Transport Unit) of multiplexing structures, optical channel data unit mapping (ODUk, optical channel data unit-k) and time division multiplexed client signal TECHNOLOGY

术手段。 Operation means.

为了实现客户信号的传输,首先要将客户信号映射到光通道净荷单元(OPUj, Optical Channel PayloadUnit-j;其中j代表支持的比特率,可以为l、 2、 3,分别表示2.5Gbit/S、 10Gbit/S和40Gbit/S左右的速率等级),加上OPUj 的开销,便构成OPUj;而后,OPUj加上光通道数据单元(ODUj, Optical Channel DataUnit-j)的通道开销,便构成ODUj。 In order to realize transmission of client signals, first of all to the client signal is mapped to the optical channel payload unit (OPUj, Optical Channel PayloadUnit-j; where j represents the supported bit rates, may be l, 2, 3, respectively 2.5Gbit / S , 10Gbit / S and 40Gbit / speed grade of about S), plus the overhead OPUj, constitutes OPUj; then, OPUj plus optical channel data unit (ODUj, optical channel DataUnit-j) of the path overhead, constitute ODUj. ODUj加上光传送单元开销和前向纠错(FEC, forward error correction )开销,形成光传输单元(OTUj, Optical Channel Transport Unit-j);再将OTUj加载到某个波长上并发送。 ODUj plus overhead optical transmission unit and the front overhead error correction (FEC, forward error correction), forming a light transmission unit (OTUj, Optical Channel Transport Unit-j); OTUj then loaded onto a certain wavelength and transmitted.

可以先对ODUj进行时分复用。 ODUj can first be time-division multiplexing. 时分复用的目的是将客户信号通过更高速率的传送通道进行发送。 The purpose of time division multiplexing client signal is sent through the transfer channel of higher rates. 为此,G.709建议中定义了支路单元(OPUkTS , Optical Channel Payload Unit-k Tributary Slot)和光通道数据支路单元j到k (ODTUjk, Optical Channel Data Tributary Unit j into k;其中k代表支持的比特率,且k〉j)。 For this purpose, G.709 recommendation defines a tributary unit (OPUkTS, Optical Channel Payload Unit-k Tributary Slot) and the optical channel data tributary unit j to k (ODTUjk, Optical Channel Data Tributary Unit j into k; wherein k denotes support bit rate, and k> j). 在此定义基础上,首先采用异步方式将ODUj的每个字节映射到 In this definition, based on the first asynchronously mapping each byte of the ODUj

ODTUjk的每个字节,再将ODTUjk映射到OPUkTS中,并最终形成光传输单元(OTUk, Optical Channel Transport Unit-k)进4亍发送。 ODTUjk of each byte, and then mapped to ODTUjk OPUkTS and eventually form the light transmitting unit (OTUk, Optical Channel Transport Unit-k) into the right foot 4 transmission.

在客户信号映射到光通道净荷单元这一环节,为了实现不同类型客户信号的传送,OTN规范中提供了多种业务映射方法,包括G.709建议中所定义的固定比特率(CBR, Constant bit rate )信号的映射、通用成帧规程(GFP, Generic Framing Procedure )帧的映射、异步转移模式(ATM, Asynchronous Transfer Mode)信元流的映射。 In the client signal is mapped to the optical channel payload unit this part, in order to achieve the transfer of different types of client signals, OTN specifications provide multiple service mapping methods, including constant bit rate (CBR G.709 recommendation defined, by Constant bit rate) signal is mapped, generic framing procedure (the GFP, mapping, asynchronous transfer mode (ATM, asynchronous transfer mode) generic framing procedure) frame mapping the cell stream. 随着数据业务的不断增长,对光传送网全速率透明传送能力提出了新的需求,因而CBR映射方式的应用将越发广泛。 With the continuous growth in data services, full-rate optical transport network transparent transmission capacity raised new demands, and therefore the application of the CBR mapping method will be more extensive.

G.709 livinglist SP13提出一种自适应CBR映射方法(Agnostic CBR mapping)。 G.709 livinglist SP13 to provide a CBR mapping adaptive (Agnostic CBR mapping). 图1示出了适用于该种CBR映射的帧结构。 FIG 1 shows a frame structure suitable to this CBR mapping types. 每个OPUk帧中从第15 列起,包括:6个字节的Cbtye,所述Cbtye指示映射的客户信号的字节数量信息;由(4 x 3808+ 1 )个字节组成的OPUk净荷区域,用于存放客户信号;以及一个字节的净荷结构标识(PSI, Payload Structure Identifier)。 Each OPUk frame 15 from the first, comprising: Cbtye 6 bytes, indicating the number of bytes of information Cbtye mapped client signal; a (4 x 3808+ 1) bytes of the OPUk payload area, for storing client signals; byte and a payload structure identifier (PSI, payload structure identifier). 在图l所示的帧结构基础上,利用现有的S -」算法将客户信号映射到自适应CBR业务OTN帧的净荷区域。 In the frame shown in Figure l configuration based on the use of existing S - "algorithms to map client signal to the payload area of ​​the OTN frame of the agnostic CBR.

发明人对现有技术进行实践研究的过程中发现,现有的自适应CBR客户信号映射方法中采用了如图1所示的固定的帧结构进4亍客户信号的映射,当客户信号速率小于OPUk的标称值时,则需要将OPUk净荷单元中未被客户信号填充的位置进行无效字节填充,以满足所述OTN体制中固定速率等级传送的要求,从而导致传送通道的实际带宽利用率不高。 The inventors studied to practice the process of the prior art, we found that the existing agnostic CBR client signal mapping method uses the fixed frame structure shown in FIG. 4 right foot into the client signal is mapped, when the client signal rate is less than OPUk nominal value, the OPUk payload unit need not fill the client signal byte filling position is invalid, the OTN system to meet the required level of transmission of the fixed rate, leading to actual transfer channel bandwidth utilization rate is not high. 尤其在客户信号速率相对OPUk的标称值较小的情况下,OPUk净荷单元中将填充大量的无效字节,较明显的降低了传送通道的带宽利用率。 In particular, the client signal rate is relatively small nominal value of the OPUk of the case, in the OPUk payload unit of a large number of invalid bytes filling, significantly lower than the transfer channel bandwidth utilization. 另一方面目前的G.709对OPUkTS结构的定义仅仅局限于ODUj到ODUk的复用,TS的划分也只定义了4或16支路单元的情况。 The current definition of the G.709 hand OPUkTS structure confined ODUj to the ODUk multiplexing, TS division defines only case 4 or 16 tributary units. 而且对CBR业务的映射也只定义了SDH业务的映射路径。 Further mapping of the CBR service mapping is defined only SDH traffic path.

随着数据业务的快速发展,越来越多的信息通过以太网(Ethernet),光纤通道(FC, Fibre Channel)和企业系统连接(ESCON, Enterprise Systems Connection)接口传输,而这些接口速率等级繁多。 With the rapid development of data services, more and more information via Ethernet (Ethernet), Fiber Channel (FC, Fibre Channel) and Enterprise Systems Connection (ESCON, Enterprise Systems Connection) interface, while the interface rate level range. 相对于众多速率等级的客户信号,OTN体制仅定义了固定速率等级的传送通道和有限的CBR映射方法, 缺少适应不同速率等级客户信号CBR透明传送的灵活的映射方法。 Rate level with respect to the number of client signals, OTN system defines only the level of the transfer channel fixed rate and limited CBR mapping, the mapping method lacks flexibility to adapt to the speed grade transparent CBR client signal transmitting different.

发明内容 SUMMARY

本发明实施例要提供一种光传送网中客户信号传送方法,能够传送不同类型速率等级客户信号,灵活分配OTN通道的带宽。 Embodiments of the present invention to provide an optical transport network client signal transmission method capable of transmitting different types of client signal rate levels, allocated bandwidth OTN channel flexibly.

为解决上述技术问题,本发明实施例是通过以下技术方案实现的:获取客户信号,将客户信号映射到预置在光通道净荷单元OPUk净荷区域的支路单元;分别标识各路客户信号所对应的支路单元;标识OPUk净荷区域的支路单元数;标识支路单元中所映射的客户信号类型;发送包含OPUk的光通道数据单元ODUk到OTN网络。 To solve the above problems, embodiments of the present invention is achieved by the following technical solution: obtaining the client signal, the client signal is mapped to the optical channel payload unit at a preset OPUk payload area tributary unit; client signals respectively identifying the brightest corresponding tributary unit; tributary unit identification number of the OPUk payload area; client signal in tributary unit type identifier is mapped; optical channel data units ODUk containing the OPUk to the OTN transmission network.

本实施例实现过程中,由于本发明实施例在成帧过程中对OPUk净荷区域的支路单元数n进行标识,以及对支路单元中所映射的客户信号类型进行标识,使得本发明实施例实现过程中可以根据不同客户信号的速率灵活确定OPUk净荷区域的支路单元数量,并且由于所迷支路单元的数量决定了CBR 透明传送的传送通道的传输速率,从而使得本发明实施例可以建立与客户信号速率相适应的传送通道,使得在CBR透明传送过程中提高了传送通道的利用率,增强了OTN设备对接入业务的灵活适应能力。 Example implementation of the present embodiment, since the embodiment of the present invention were identified, and the client signal type of the tributary unit for identification of the mapped tributary unit number n OPUk payload area in the framing process, so that the embodiment of the present invention Example implementation process flexibility to determine the number of tributary units OPUk payload area according to the rate of different client signals, and since the number of fans tributary unit determines the transmission rate of the transmission channels of transparent transmitted CBR, so that the embodiment of the present invention It can be established to adapt the rate of the client signal transmitting path, so that the transfer channel improves the utilization of the transparent CBR transmission process, the ability to enhance the flexibility to adapt to the OTN device access service.

附图说明 BRIEF DESCRIPTION

图1为现有技术中CBR映射采用的OTN帧结构; 图2为本发明实施例OPUk aTS-4帧结构示意图; 图3为本发明实施例OPUkaTS-11帧结构示意图; 图4为本发明实施例ODTUan-k帧结构示意图; Figure 1 is a prior art structure of an OTN frame used in CBR mapping; FIG. 2 aTS-4 frame structure OPUk schematic diagram of embodiment of the invention; FIG. 3 OPUkaTS 11-frame structural diagram of embodiment of the present invention; FIG. 4 embodiment of the present invention Example ODTUan-k frame structure diagram;

图5为本发明实施例对4个支路单元捆绑使用的4XODTUall-4帧结构示意图; FIG 5 4XODTUall-4 frame structure schematic diagram of the four tributary unit bundled embodiment of the invention;

图6为本发明实施例ODTUall-4的客户信号映射示意图;图7为本发明客户信号发送设备第一实施例结构示意图; FIG 6 is a schematic diagram of the client signal mapped ODTUall-4 of the embodiment of the present invention; schematic structural view of the client signal transmitting apparatus of the first embodiment of the present invention, FIG 7;

图8为本发明客户信号发送设备第二实施例结构示意图; Client configuration diagram showing a second embodiment of the signal transmitting apparatus of the present invention, FIG 8;

图9为本发明客户信号接收设备实施例结构示意图; Client signal receiving apparatus embodiment of FIG. 9 shows a structure of the present invention;

图10为本发明实施例采用GFP或ATM信元映射方式的光数据支路单元(ODTUn-k)结构示意图; 10 embodiment employs the optical data tributary unit or GFP (ODTUn-k) schematic structure of ATM cell mapping mode of the present invention;

图11为本发明实施例TS2采用GFP映射方式的OPUkTS-ll帧结构示意图。 FIG 11 OPUkTS-ll schematic structural diagram TS2 frame using GFP mapping mode embodiment of the invention.

具体实施方式 Detailed ways

本发明实施例才艮据不同客户信号速率,以OPUk帧结构基础上灵活划分和分配支路单元(Tributary Slot)来提高对多种客户信号的高效灵活传送,并利用ITU-T SGI5 G,70卯vinglist中的自适应CBR业务的映射方法(Agnostic CBRmapping),实现对多种不同速率客户信号的CBR透明传送。 Embodiments of the invention according to different clients before Gen signal rate, based OPUk frame structure to divide and allocate the flexible branching unit (Tributary Slot) to increase more efficient and flexible transmission of client signals, using ITU-T SGI5 G, 70 d vinglist in the agnostic CBR mapping method in the (Agnostic CBRmapping), for transparently transmitting various client signals of different rates of CBR.

首先,说明本发明实施例对帧结构的改进。 First, the frame structure of the modified example of the embodiment of the present invention. 本文中对本发明实施例在以OPUk为基础改进得到的帧结构称为:OPUk aTS-n (Optical Channel Payload Unit-k Agnostic tributary slot n),表示划分为n个支路单元的自适应OPUk。 Herein, embodiments of the present invention in the OPUk frame structure to improve based referred obtained: OPUk aTS-n (Optical Channel Payload Unit-k Agnostic tributary slot n), is divided into n represents an adaptive OPUk tributary unit.

图2示出了本发明第一实施例OPUk aTS-n帧结构示意图。 FIG 2 shows a schematic view of the present invention aTS-n OPUk frame structure of the first embodiment embodiment. 参照该图具体说明本发明实施例对现有帧结构进行的改进。 The detailed description with reference to FIG modified example of the frame structure of the conventional embodiment of the present invention.

图2示出了6个OTN帧,其中从第17列至第3824列共3808列,每一OTN帧共4行,因此,OPUk净荷区域共有(4 x 3808)个字节。 FIG 2 illustrates an OTN frame 6, wherein a total of from 17 3808 through 3824, each row of the OTN frame 4, therefore, The OPUk payload area total of (4 x 3808) bytes. 如图,本实施例中将OPUk帧中划分为4个支路单元,即所述n取值为4,得到OPUk aTS-4 的帧结构。 As shown, in the embodiment is divided into 4 OPUk frame branching unit, i.e. the value of n is 4, to obtain the frame structure of the OPUk aTS-4 of the present embodiment. 由3808/4 = 952可知,每行的3808个字节正好使得4个支路单元完成952个周期循环; 一个OPUk正好使得4个支路单元完成(952 x 4 = 3808 ) 个周期循环,即一个OTN帧每一支路单元可完成3808个字节的传输,亦即每一支路单元若需完成(3808 x 4)个字节数据的传输则需经过4个OTN帧。 Seen from 3808/4 = 952, the 3808 bytes per row such that four tributary units just to complete 952 cycles; exactly such an OPUk tributary unit 4 is completed (952 x 4 = 3808) cycles cycles, i.e., an OTN tributary unit may fulfill the frames for each 3808-byte transport, i.e. transfer completion For each branch unit (3808 x 4) bytes of data through 4 OTN frames need.

以图2所示的帧结构为基础进行客户信号的传输,如果所述OPUk中, 所述k取值为1,则表示2.5Gbit/S左右的帧速率等级,在将所述OPUk划分为4个支路单元的情况下,每个支路单元的传输速率可达到(精确计算到小数点后5位)0.62208Gbit/S;同理,若所述k取值为2,则表示10 Gbit/S左右的帧速率等级,在将OPUk划分为4个支路单元的情况下,每个支路单元的传输速率可达到(精确计算到小数点后5位)2.49882Gbit/S。 In the frame structure shown in FIG 2 as the basis for transmitting client signals if the OPUk, the k value is 1, it indicates that approximately 2.5Gbit / S frame rate class, in the OPUk is divided into 4 a branching unit in the case, the transmission rate of each tributary unit can be achieved (after precisely calculating a decimal 5) 0.62208Gbit / S; Similarly, if the k value is 2, then 10 Gbit / S the left and right frame rate level, in the case where the OPUk is divided into 4 tributary unit, a transmission rate of each tributary unit can be achieved (after precisely calculating a decimal 5) 2.49882Gbit / S.

OPUk净荷区域中支路单元划分的数量n应该根据客户信号的速率及客户信号的种类和数量决定,确保每个支路单元能够利用自适应CBR业务映射方法完成每路客户信号的透明传送,包括能够完全容忍客户信号的最大可能频偏。 The number of tributary unit OPUk payload area is divided according to the type and the number n should be the client signal and the rate of the client signal is determined, can be utilized to ensure that each tributary unit agnostic CBR mapping method to transparently transmitting Each client signal, including the ability to completely tolerated maximum possible deviation of the client signal. 如果OPUk净荷区域的3808列无法按列划分为n个支路单元,那么对OPUk净荷区域中某些列进行固定填充,所取填充的列的数量为mod( 3808/n )。 If the number of OPUk payload area of ​​3808 columns can not be divided into n tributary units, then the OPUk payload area of ​​some of the fixed stuff columns, packed columns taken is mod (3808 / n).

图3示出了本发明第二实施例OPUk aTS-ll帧结构。 FIG 3 shows a second embodiment of the OPUk aTS-ll frame structure of the present invention. 参照图3,并且由mod ( 3808/n ) = 2可知,本实施例中将OPUk净荷区域的最后两列(3823列和3824列)进行无效数据填充。 The last two (3823 and 3824) Referring to FIG. 3, and can be seen from mod (3808 / n) = 2, the OPUk payload area in the embodiment according to the present embodiment will be filled with invalid data. 进而,每行的进行两个字节的填充后,剩余的3806个字节正好^f吏得11个支路单元完成346个周期循环;对3823列和3824 列填充后的OPUk使得11个支路单元完成(346 x 4 = 1384 )个周期循环,即一个OTN帧每一支路单元可完成1384个字节的传输。 Further, after filling is two bytes per row, and the remaining 3806 bytes have just ^ f Official branching unit 11 to complete 346 cycles; OPUk of the 3823 and 3824 so that the filled support 11 Road unit completes (346 x 4 = 1384) cycles cycles, i.e., a frame OTN tributary unit may fulfill each 1384-byte transport. 图3示出的为对OPUk 净荷区域第3823列和3824列进行填充的方式,本发明实施例对OPUk净荷区域中固定填充列统一放到OPUk帧末尾,以便于识别。 3 is a first embodiment of the OPUk payload area 3823 and 3824 to fill FIG illustrated embodiment of the present invention is fixed to the OPUk payload area is filled into the end of the OPUk frame unified column, for identification. 但本发明并不对所述固定填充列的具体位置进行限定。 However, the present invention is not specific filling position for defining the fixed column.

在上述OPUk净荷区域划分支路单元的基础上,为了适应所述帧的划分, 本发明实施例中还利用保留字节添加标识用于指示OPUk净荷区支路单元的划分,包括,定义净荷类型标识、复帧标识号、客户信号类型标识和支路单元群组标识。 Based on the above OPUk payload area division on the tributary unit, in order to adapt the frames is partitioned, embodiments of the present invention use reserved byte is also added for dividing the tributary unit identifier indicating the OPUk payload area, including the definition of payload type identifier, multi-frame identification number, and a client signal type identification tributary unit group identifier. 以下分别对本发明实施例中采用的标识进行介绍。 The following examples were identified using the embodiment of the present invention are described.

利用现有OTN帧结构中定义的PSI[0]字节,即净荷类型(PT, Payload Type)字节,对本发明实施例定义的帧结构进行标识。 PSI using existing OTN frame structure defined in [0] byte, i.e., payload type (PT, Payload Type) bytes, the frame structure of the embodiment of the present invention defined in the embodiment identified. 例如,设置PSI[0]为现有技术中未利用的某一值,用于指示为本发明实施例所定义的多支路单元自适应OPUk (OPUkaTS-n)帧结构。 For example, set the PSI [0] is not prior art utilized a certain value, means for adaptive multidrop OPUk (OPUkaTS-n) frame structure defined in Example embodiments of the present invention indicated.

fl设本发明实施例中PSI[0]=13时指示为本发明实施例的OPUk aTS-n结构。 provided fl embodiment of the present invention PSI [0] = 13 indicates OPUk aTS-n structure of an embodiment of the present invention. 则进一步,在PSI[0]-13的情况下,本发明实施例进一步利用光通道净荷单元k( OPUk )通道开销(OPUk OH, Optical Channel Payload Unit-k Overhead)中的保留开销字节(如图所示PSI占用帧第4行第15列位置上的一个字节), Is further, in case where the PSI [0] -13, further embodiments of the invention utilizing the optical channel payload unit overhead byte reserved k (The OPUk) path overhead (OPUk OH, Optical Channel Payload Unit-k Overhead) of ( PSI occupies a byte shown in FIG. 15 position on the second frame row 4),

设置PSI[1]的取值,用于指示OPUk净荷区域划分的支路单元数量n。 Provided PSI [1] value is used to indicate the OPUk payload area dividing tributary unit number n.

采用复帧指示的方法指示当前帧的3个Cbyte所属的支路单元,因此需要一个与支路单元划分数量相同的复帧循环标识号,可以利用16列第4行位置上的字节指示,本发明实施例中将该字节命名为支路单元复帧标识(MFI-TS , tributary slot MultiFrame Indicator )。 The method of using multiframe indication indicates that the current frame belongs Cbyte tributary unit 3, thus requiring a same number of the tributary unit cycle division multiplex frame identification number may be utilized on the fourth byte indicates the position of row 16, this embodiment is named the byte multiplex frame identifier branching unit embodiment of the present invention (MFI-TS, tributary slot multiFrame Indicator). 如图2所示的4支路单元自适应OPUk (OPUk aTS-4 )帧,MFI-TS字节每帧加一计数,直到与OPUk中划分的支路数量相同时(也就是与PSI[1]字节的值相同)清零再计数,依次循环。 Adaptive OPUk tributary unit 4 shown in FIG. 2 (OPUk aTS-4) frame, MFI-TS byte per frame plus a count of the number of branches until the OPUk is divided in the same (i.e. the PSI [1 ] bytes of the same value) and then clears the count, followed by cycle. 例如MFI-TS字节的值指示为第一帧时(图中00所对应的帧),则该帧中的3个Cbyte (第1至第3行,第15列和第16列位置上的共计6个字节)对应于第一支路单元TS1;当MFI-TS字节的值指示为第二帧时(图中01所对应的帧), 则该帧中的3个Cbyte对应于第二支路单元TS2 ,以此类推。 For example, MFI-TS byte indicates the first frame (the frame corresponding to FIG. 00), then the frame 3 CByte (first to row 3, column 15 and 16 on the position a total of six bytes) corresponding to the first tributary unit TSl; when the MFI-TS byte indicates the second frame (the frame corresponding to FIG. 01), then the frame corresponds to 3 Cbyte two tributary unit TS2, and so on.

在图2所示的OPUk aTS-4帧结构中,因为mod ( 3808/4 ) =0,所以不需对OPUk净荷区的任何列进行填充。 In the OPUk shown in FIG. 2 aTS-4 frame structure, because mod (3808/4) = 0, it does not need any column of the OPUk payload area is filled. MFI-TS在0 ~ 3之间循环,MFI-TS=0 , 当前帧的3个Cbyte对应于TS1; MFI-TSK3当前帧的3个Cbyte对应于TS4。 MFI-TS cycle between 0 to 3, MFI-TS = 0, 3 th current frame corresponds to CByte TSl; 3 Cbyte MFI-TSK3 th frame corresponding to the current TS4. 如果将OPUk净荷区划分为ll个支路单元,那么需要将OPUk净荷区后面的mod( 3808/11 )=2列进行固定填充,则11支路单元自适应OPUk( OPUk aTS-11 ) 结构如图3所示。 If the OPUk payload area is divided into two branch units ll, it is necessary to OPUk payload area behind the mod (3808/11) = 2 columns of fixed stuff, the branching unit 11 adaptive OPUk (OPUk aTS-11) structure shown in Figure 3. MFI-TS在0 ~ 10之间循环,MFI-TS=0,当前帧的3个Cbyte 对应于TS1; MFI-TS-10当前帧的3个Cbyte对应于TS11 。 MFI-TS cycles between 0 and 10, MFI-TS = 0, 3 CByte th current frame corresponds to TS1; 3 th Cbyte 10 MFI-TS-current frame corresponds to TS11.

所述Cbyte用于装载OPUk净荷区域填充的客户信号的字节数(Cn )。 The number of bytes used to load Cbyte OPUk payload area fills the client signal (Cn).

利用PSI[2m]字节指示第m支路单元中映射的客户信号类型,利用PSI[2m + l]指示第m支路单元所属的群组,例如:PSI[4]和PSI[5]指示TS2, PSI[6] 和PSI[7]指示TS3。 Using the PSI [2m] byte indicates the type of the client signal mapped tributary unit m, using PSI [2m + l] indicates the m-th tributary unit group belongs, for example: PSI [4] and PSI [5] indicate TS2, PSI [6] and PSI [7] indicate TS3.

表1示出了本发明实施例所采用的PSI[2m]值与支路单元映射客户信号类型的对应关系。 Table 1 shows the embodiment of the present invention is employed in embodiments PSI [2M] value and the tributary unit mapping the client signal type of correspondence. 显然,PSI[2m]的取值与客户信号类型的对应关系可以根据业务的具体需求进行灵活设定,这种设定并不影响本发明的实质。 Obviously, [2m] PSI value of the client signal type of correspondence may be flexibly set according to the specific needs of the business, such setting does not affect the essence of the present invention.

表1 Table 1

PSI岡值I_业务类型_I线路速率(Gbit/S )<table>table see original document page 11</column></row> <table> Gang PSI values ​​I_ service type _I line rate (Gbit / S) <table> table see original document page 11 </ column> </ row> <table>

如果每个支路单元分别传送独立的客户信号,那么每个支路单元对应的 If each tributary unit transmits independent client signals respectively, each branch corresponding to cell

PSI[2m+l]为不同的值,表示支路单元处于不同的群组;如果其中对某些支路单元进行捆绑以组成更大的传送通道传送客户信号,那么对应捆绑的支路单元的PSI[2m+ l]字节配置相同的值,表示这些支路单元处于同一个群组。 PSI [2m + l] of different values, expressed in different tributary unit groups; wherein if certain tributary units to form a larger bundle transport client signals conveying path, then the corresponding tributary unit bundled PSI [2m + l] of the same configuration byte value, which indicates the branching unit in the same group.

表2示出了OPU4净荷单元划分了11个支路单元情况下(OPUk aTS-11 ), 未对支路单元进行捆绑的情况,表3示出了OPU4净荷单元划分了11个支路单元情况下对第4至第7支路单元进行捆绑传送ODU3信号的情况。 Table 2 shows an OPU4 payload unit at divided tributary unit case 11 (OPUk aTS-11), not tied to a case where the branching unit, Table 3 shows the OPU4 payload unit 11 branches divided 4 to 7 to the tributary unit for the case of bundling transport unit ODU3 signal in the case. 其中PSI[8]、 PSI[IO]、 PSI[12]、 PSI[14]取值均为33,指示客户信号类型为ODU3, PSI[7]、 PSI[9]、 PSI[ll]、 PSI[I3]值为4,表明其所对应的第4至第7支路单元属于同一群组,该群组编号为4。 Wherein the PSI [8], PSI [IO], PSI [12], PSI [14] The value of 33, indicates that the client signal type is ODU3, PSI [7], PSI [9], PSI [ll], PSI [ I3] is 4, it indicates that the corresponding 4 to 7 belong to the same tributary unit group, the group number is 4.

表2 Table 2

<table>table see original document page 12</column></row> <table><table>table see original document page 13</column></row> <table> <Table> table see original document page 12 </ column> </ row> <table> <table> table see original document page 13 </ column> </ row> <table>

注:l<n<127, m=l,2,3,".n+l 以上说明了本发明实施例的OPUk支路单元划分方法,利用实施例中介绍的方法所构造的OPUk aTS-n帧结构适合大多数类型的客户信号,特别是Ethernet, FC和ESCON业务。经过计算,表5列出了大部分业务与n支路单元自适应OPUk ( OPUk aTS-n)速率的对应关系。表中列出了较合理的支路单元划分对应关系,也就是线路利用率较高的情况。这种OPUk aTS-n帧结构可以支持2 - 127任意支路单元数量的划分。 Note:. L <n <127, m = l, 2,3, "n + l OPUk tributary unit described above dividing method of an embodiment of the present invention, using the method described in Example embodiments of the OPUk aTS-n structure a frame structure suitable for most types of client signals, especially the Ethernet, FC, and ESCON services. after calculation, table 5 shows the correspondence between services and most adaptive tributary units n OPUk (OPUk aTS-n) rate table listed tributary units divided reasonable correspondence relationship, which is the case of such high line utilization OPUk aTS-n frame structure can support 2 - 127 arbitrary number of tributary unit division.

表5<table>table see original document page 14</column></row> <table>(注:OPUk支路单元速率单位为Gbit/s, OPUk支路单元速率精确到小数点后5位;本发明实施例中OPU4的速率取121.48106Gbit/s; Table 5 <table> table see original document page 14 </ column> </ row> <table> (Note: OPUk tributary unit rate in units of Gbit / s, OPUk tributary unit rate is accurate to five decimal places; present invention Examples rate OPU4 embodiment taken 121.48106Gbit / s;

歸GE-4L:指4x25G的100GE通道; 100GE-5L:指5x20G的100GE通道; 100GE-10L:指10xl0G的100GE通道。 Owned GE-4L: means 100GE channel of 4x25G; 100GE-5L: means 100GE channel of 5x20G; 100GE-10L: means of 100GE channel 10xl0G. )

以上通过具体实施例对本发明中采用的OPUk aTS-n以及支路单元的划分方法进行了说明。 It has been described above for the OPUk aTS-n and the branching unit division method employed in the present invention through specific embodiments. 然而在具体实现手段上,上文所述实施例中有诸多可改变之处。 However, the specific means of achieving the above embodiment has many of the embodiment can change it.

上文实施例中,定义PSI[0]值为13时,指示采用OPUkaTS-n的帧结构。 In the above embodiment, defined PSI [0] value is 13, indicating the use of OPUkaTS-n frame structure. 然而,本发明并无意对强调PSI[0]值为13为本发明的唯一实现方式,本领域技术人员可以根据实际需求,定义PSI[O]值现有技术中未利用的某一值用于标 However, the present invention is not intended to emphasize the PSI [0] value is 13 the only way to implement the present invention, those skilled in the art can [O] value of the prior art are not utilized according to the actual needs of a certain value, defined PSI mark

识采用OPUk aTS-n的帧结构。 Identifying adopts a frame structure of the OPUk aTS-n.

上文实施例中,利用PSI[1]位置上的值标识所划分的支路单元数量。 Embodiments above embodiment, by using the number of PSI [1] value identifying the position of the divided tributary unit. 然而, 本领域技术人员也可利用其他现有预留字段实现对支路单元划分数量的标识。 However, those skilled in the art may also be implemented using other existing reserved field division number of the tributary unit identified.

上文实施例中,利用PSI[2m]位置PSI[2m + l]位置分别标识同一支路单元中映射的客户信号类型和支路单元群组。 Embodiments above embodiment, using the PSI [2m] position of the PSI [2m + l] respectively identifying the location and type of the client signal tributary unit group of a branch unit mapping. 然而,对于客户信号类型和支路单元群组的标识也可以采用现有技术预留的其他字段;除此之外,如上文所述, 各字段位置上的取值与客户信号类型的对应关系,或/和各字段位置上的取值与支路单元群组的标识方法,本领域技术人员可以根据具体需求进行定义, 这些改变并不影响本发明的实现。 However, the customer identification for the signal type and tributary unit group may also be employed in other fields reserved prior art; In addition, as described above, the value of the client signal type of each field position corresponding relationship , value and identification methods or a group of the tributary units / fields and positions, those skilled in the art can be defined according to specific needs, these changes do not affect the implementation of the invention.

在上文所介绍的OPUkaTS-n的帧结构的基础上,以下具体说明如何将客户信号映射到该结构的帧中,并进行传输。 OPUkaTS-n on the basis of the frame structure introduced above, the following illustrates how to map the client signal to the frame structure, and transmitted.

在客户信号映射到OPUk aTS-n帧结构中之前,需要根据OPUk aTS-n帧结构定义相应的光通道数据支路单元自适应n支路单元到k ( ODTUan-k)帧结构;并且ODTUan-k帧结构的速率和OPUk的速率相同。 Before OPUk aTS-n frame structure is mapped to the client signal, we need to OPUk aTS-n frame structure defines a respective optical channel data tributary unit adaptive to a tributary unit n k (ODTUan-k) frame structure; and ODTUan- the same rate and the rate k of OPUk frame structure.

如果OPUk划分的支路单元数量为n,则ODTUan-k帧单元为4n行,int (3808/n)列的结构,并且在其头部有3个Cbyte空间,每个Cbyte空间有2 个字节,如图4所示。 If the OPUk tributary unit division number n, the ODTUan-k frame unit 4n rows, int (3808 / n) of the column structure, and has 3 Cbyte spaces at its head, each Cbyte space has two words section, as shown in FIG. 可知, 一个占用两个字节的Cbyte空间共能指示65535 个字节,而ODTUan-k单元共有4nx int (3808/n) < 15232个字节,因此,2 个字节的Cbyte空间完全能够指示ODTUan-k帧的净负荷字节数量。 Understood, a Cbyte space occupies two bytes can indicate a total of 65535 bytes, while the total ODTUan-k unit 4nx int (3808 / n) <15232 bytes, and therefore, two-byte Cbyte space is fully capable of indicating the number of payload bytes ODTUan-k frame.

如上文所述,本发明实施中还可将OPUk aTS-n帧结构中的部分支路单元进行捆绑,组成更大的传送通道,传送更高速率的客户信号,最大限度满足客户多种不同业务类型混合传送的需求。 As described above, embodiments of the present invention may also be OPUk aTS-n frame structure bundled portion tributary unit, the transfer passage into larger, higher transfer rate client signals, a plurality of different services to maximize customer satisfaction and mixed-transport requirements. 图5示出了在OPUk支路单元数为11的情况下,将11个支路单元中的4个支路单元捆绑后构成的4xODTUal 1 -k, 当k取值为4时,其PSI取值情况可假设为表3中的情况。 FIG. 5 shows a 4xODTUal 1 -k OPUk tributary in the case where the number of units 11, 11 will tributary unit 4 tributary unit bundled configuration, when the k value of 4, which takes PSI value or the case may be assumed in table 3.

如图5所示,4个支路单元捆绑的4XODTUall-4帧结构有3个Cbyte空间,每个Cbyte空间有8个字节,完全能够指示1384 x 44个字节空间位置。 5, 4XODTUall-4 frame structure 4 are bundled tributary unit 3 Cbyte spaces, and each Cbyte space has 8 bytes is fully capable of 1384 x 44 bytes indicating the spatial position. 以下实施例具体说明如何将多路客户信号利用ITU-T SG15 G/7091ivinglist 中的自适应CBR业务的映射方法(Agnostic CBR mapping )全速率透明映射到本发明实施例提供的OTN帧中。 The following examples illustrate how to use multiple client signals ITU-T mapping method SG15 G / 7091ivinglist agnostic CBR service (Agnostic CBR mapping) to the full rate transparent mapping OTN frame provided by embodiments of the present invention.

以OPU4划分为11个支路单元为例,其中第1-10支路单元用于传送IOGELAN信号,第11支路单元用来传送ODU2信号。 In OPU4 is divided into 11 tributary unit, for example, wherein tributary unit 1-10 IOGELAN for transmitting signals, means for transmitting a first branch 11 ODU2 signal. 这种情况下,本实施例沿用上文实施例对OPUkaTS-n的结构,则PSI[0]=13, PSI[1]=11; PSI[2m] 和PSI[2m + l]字节分配如表6所示: In this case, the structure of the present embodiment follows the example of the above embodiment OPUkaTS-n, the PSI [0] = 13, PSI [1] = 11; PSI [2m] and the PSI [2m + l] bytes allocated as table 6:

表6 Table 6

<table>table see original document page 16</column></row> <table> <Table> table see original document page 16 </ column> </ row> <table>

对于客户信号发送端,包括以下步骤: For the client signal transmitting end, comprising the steps of:

分别接收10路10GE LAN信号和1路ODU2信号,分别提取各路信号时钟,与本地时钟比较确定各路信号的Cn值。 Receive path 10 10GE LAN signals and one ODU2 signal paths, each group were extracted clock signal, the comparison determination value Cn with the local clock signals from various quarters. 将各路信号的Cn值映射到当前的ODTUal 1 -4帧的Cbyte空间中。 The Cn value is mapped to the brightest signal ODTUal Cbyte space of the current frame 1-4.

在当前ODTUal 1-4帧的下一帧,根据前一ODTUal 1-4帧Cbyte空间中的Cn值,将各路信号的Cn个字节按照ITU-T SGI5 G,7091ivinglist中的自适应CBR业务的映射方法中提出的S -」算法规则,分别映射到各个ODTUall-4帧结构的净荷区中。 ODTUal 1-4 in the next frame of the current frame, according to a Cn value of the previous frame ODTUal 1-4 Cbyte space, the Cn bytes of each group agnostic CBR signal according to ITU-T SGI5 G, 7091ivinglist of S mapping method proposed - "algorithm rules are mapped to the payload area of ​​each ODTUall-4 frame structure. 参照图6,假设要将一路ODU2信号映射到ODTUall-4帧中,则在第nl次ODTUall-4帧时,首先将接收ODU2信号所确定的Cn值映射到Cbyte空间中,并且在第n次ODTUall-4帧时,根据前一帧Cbyte空间中的Cn值,将Cn个字节的ODU2信号映射到ODTUall-4 帧(346x44)的净荷区域。 Referring to Figure 6, assume that the way you want ODU2 signal is mapped ODTUall-4 frame, then the first nl times ODTUall-4 frame, a first map Cn value of the received ODU2 signal to the Cbyte space is determined, and the n-th when ODTUall-4 frame, a previous frame according to the Cn value in the Cbyte space, mapping the ODU2 signal of Cn bytes to ODTUall-4 frame (346x44) payload area.

ODTUall-4帧结构的字节速率和OPU4帧的字节速率相同,客户信号时钟和ODTUall-4帧的时钟异步,他们之间的频偏依靠Cn值的调整来补偿异步时钟的差异。 Byte rate ODTUall-4 frame structure and the same rate of bytes OPU4 frame, the client signal clock and a clock asynchronous ODTUall-4 frame, the frequency offset between them depend on the value of Cn adjustment to compensate for differences in the asynchronous clock.

构造OPU4 11支路单元自适应支路单元(OPU4 aTS-ll )帧结构,将上述映射了客户信号的ODTUall-4帧结构的每个字节映射到OPU4 aTS-ll帧结构对应的支路单元的每个字节中。 OPU4 11 tributary unit configured adaptive tributary unit (OPU4 aTS-ll) frame structure, the above-described mapping each byte of the tributary unit ODTUall-4 frame structure of the client signals mapped to the OPU4 aTS-ll corresponding to a frame structure each byte.

本实施例,对划分11个支路单元的OPU4帧,可以承载11个ODTUall-4 帧结构。 This embodiment of the OPU4 frame is divided into 11 tributary unit, it can carry 11 ODTUall-4 frame structure. 其中10个ODTUall-4帧映射10GE LAN客户信号, 一个ODTUall-4 映射ODU2信号。 Wherein ODTUall-4 10 10GE LAN client signal frame mapping, a map ODTUall-4 ODU2 signal.

为OPU4 aTS-ll帧结构添加PSI字节和MFI-TS字节等开销字节,形成OTU4线路帧,发送到OTN网络。 Add OPU4 aTS-ll byte frame structure PSI byte and MFI-TS byte overhead, etc., is formed OTU4 line frame, it is sent to the OTN network.

对于接收端,接收到所述OTU4线路帧后,执行以下步骤。 For the receiving end, the OTU4 line frame is received, perform the following steps.

根据接收到OPU4中的PSI[0]字节,确定为多支路单元自适应映射方法, 冲艮据PSI[1]字节确定为OPU4aTS-11帧,进一步根据PSI[2m]的值识别映射的客户信号类型,根据PSI[2m+l]的值识别为支路单元未捆绑的运用;根据MFI-TS的复帧号,从OPU4 aTS-ll帧中解析出ODTUall-4帧;再从ODTUall-4帧中解析各路客户信号的Cn值,并且才艮据Cn值还原11路客户信号的时钟,进一步还原10路10GE LAN信号和1路ODU2信号数据流。 The received OPU4 the PSI [0] byte, is determined as a multi-element adaptive tributary mapping method, according to Burgundy red PSI [1] byte determined OPU4aTS-11 frame, a value of the identification map further accordance PSI [2m] of the client signal type, according to the PSI [2m + l] using the value of the tributary unit identified as unbound; according to the multi frame number of the MFI-TS, from the OPU4 aTS-ll frame parsing ODTUall-4 frame; and from ODTUall frame parsing -4 brightest value of the client signal Cn, and Cn values ​​according to the reduction Gen only 11 clock of the client signal path, further reducing passage 10 10GE LAN signals and one ODU2 signal data stream channel.

如果本实施例中对支路单元进行了捆绑,捆绑的支路单元对应如图5所示的4XODTUal 1 -4结构。 If the present embodiment of the tributary unit bundled, the bundling unit corresponds to the branch structure shown in FIG. 4XODTUal 1 -4 5. 则在4XODTUal 1-4帧结构字节映射到OPU4 aTS-11 的捆绑的4个支路单元中时,将Cbyte空间按照图5中虚线所示位置或者其他分成12个Cbyte空间,将净荷区拆分成4部分,分别映射到OPU4 aTS-ll的4个捆绑支路单元中。 Then when 4XODTUal 1-4 bytes mapped into the frame structure bundled OPU4 aTS-11 tributary unit 4, the Cbyte space according to the position shown in dashed lines in FIG. 5 or other 12 Cbyte spaces into the payload area split into four parts, are mapped to the OPU4 aTS-ll bundle four tributary unit. 本领域技术人员可以理解,实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成,所述的程序可以存储于一计算机可 Those skilled in the art will be appreciated, to achieve the above embodiments of the method that all or part of the steps may be relevant hardware instructed by a program, the program may be stored in a computer

读取存储介质中(如:ROM/RAM、磁碟、光盘等)。 Readable storage medium (eg: ROM / RAM, magnetic disk, optical disk, etc.). 该程序在执行时,包括如下步骤:获取客户信号,将客户信号映射到预置在光通道净荷单元OPUk 净荷区域的支路单元;分别标识各路客户信号所对应的支路单元;标识OPUk 净荷区域的支路单元数;标识支路单元中所映射的客户信号类型;发送包含所述OPUk的光通道数据单元ODUk到OTN网络。 When the program is executed, comprising the steps of: acquiring the client signal, the client signal is mapped to a preset unit in the branch optical channel payload unit OPUk payload area; respectively identifying the tributary unit signal corresponding to each group of customers; identifying the number of tributary units OPUk payload area; client signal in tributary unit type identifier mapped; transmission optical channel data unit ODUk including the OPUk to the OTN network. 以及可进一步的,在OPUk 净荷区域每行中相对应的固定字节位置上进行无效数据填充,使得OPUk净荷区每行未被填充的字节数是支路单元数量n的整倍数。 And a further number of bytes, in each row of the OPUk payload area corresponding to the position of fixed-byte padding invalid data, so that each row of the OPUk payload area is not filled with the number n of integral multiples of the branching unit. 在划定的OPUk支路单元之间,设置群组,被设置到同一个群组的支路单元共同组成一个通道传送客户信号;并利用OPUk开销字节标识群组分配状态。 Between designated OPUk tributary unit, provided the group is set to the same tributary unit group composed of a client signal transmission channel; OPUk overhead bytes using a group identifier allocated. 其中,可以采用自适应CBR映射方法,或者GFP映射方法,或者ATM信元映射方法将客户信号映射到所述支路单元。 Wherein the adaptive CBR mapping may be employed, or a GFP mapping method or ATM cell mapping method of mapping the client signal to the tributary unit.

参照图7,为本发明提供的一种光传送网客户信号发送设备第一实施例, 包括: Referring to FIG 7, an optical transport network client signal transmitting device provided in a first embodiment of the present invention, comprising:

客户信号获取单元71,用于获取客户信号,统计一帧时长内获取的各路客户信号的字节数; Client signal obtaining unit 71, adapted to obtain client signals, the number of bytes of the client signal is acquired from various quarters in a long time;

映射单元72,用于在光通道净荷单元OPUk的开销字节映射所述字节数值;按照所述字节数值将客户信号映射到所述字节lt值对应的支路单元; The cost mapping unit 72 for the optical channel payload unit OPUk mapping the bytes byte value; the byte value according to the client signal is mapped to the branch section corresponding to the byte value lt;

OPUk构造单元73,用于在OPUk开销字节添加控制标识,包括标识所述字节数值所对应的预置在OPUk净荷区域的支路单元;以及标识OPUk净荷区域的支路单元数n;标识支路单元中所映射的客户信号类型;以及,还可在所述OPUk的开销字节中进一步添加支路单元群组标识,用于指示支路单元所在的群组。 OPUk constructing unit 73, OPUk overhead byte for the control flag is added, comprising identifying a byte value corresponding to a preset OPUk payload area in tributary units; and n identifies the number of tributary units OPUk payload area ; client signal in tributary unit type identifier mapped; and a group indicating the unit is located may further tributary add tributary unit group identifier in the OPUk overhead byte used.

发送单元74,用于发送包含所述OPUk的光通道数据单元ODUk。 Transmission unit 74 for transmitting an optical channel data units ODUk including the OPUk is.

其中,所述映射单元72可以釆用自适应CBR映射方法,或者GFP映射方法,或者ATM信元映射方法将客户信号映射到所述支路单元。 Wherein the mapping unit 72 can use the agnostic CBR mapping method Bian, or GFP mapping method or ATM cell mapping method of mapping the client signal to the tributary unit.

若映射单元72采用CBR映射方法,则执行以下动作:将一帧时长内接收到的某一路客户信号的字节数值映射到结构为4nxint ( 3808/n)个字节当前帧的光通道数据支路单元ODTUan-k的开销字节;以及,根据前一帧ODTUan-k开销字节中映射的客户信号字节数,将该路客户信号的每个字节映射到当前帧ODTUan-k的净荷区域;将所述ODTUan-k中净荷区域的每个字节分别映射到OPUk净荷区域中该路客户信号所对应的支路单元的每个字节中;以及将所述ODTUan-k开销字节中的客户信号字节数值映射到OPUk的开销字节中。 If the mapping unit 72 uses CBR mapping method, perform the following actions: a road map the client signal byte value received in duration to a structure 4nxint (3808 / n) bytes branched optical channel data of the current frame Road unit ODTUan-k overhead bytes; and, in accordance with the number of bytes of a client signal ODTUan-k overhead bytes mapping each byte of the mapped client signal path to the net current frame of the ODTUan-k charge area; each byte in the ODTUan-k payload area are mapped to each byte of the OPUk payload area client signal path corresponding to the branch unit; and the ODTUan-k overhead bytes of the client signal byte value mapped to the OPUk overhead byte.

上述实施例结构基础上,还可包括划分单元、填充单元;图8示出了本发明光传送网客户信号发送设备的第二实施例。 On the basis of the structure of the embodiment described above, further comprising a dividing unit, filling unit; FIG. 8 shows a second embodiment of the present invention, the optical transport network client signal transmitting apparatus. 其中,客户信号获取单元81、 映射单元82、 OPUk构造单元83、发送单元84与上一实施例中功能相同; Wherein the client signal obtaining unit 81, mapping unit 82, OPUk constructing unit 83, a transmission unit 84 with the same function in the embodiment;

划分单元85,用于确定OPUk净荷区域中的支路单元数n;每一支路单元以所述支路单元数n为周期占用OPUk净荷区域字节;所述支路单元数值n 的范围为2至127。 Dividing unit 85, the tributary unit for determining the number of OPUk payload area n; each branch unit to the branch unit number n is the cycle occupies the OPUk payload area bytes; the value of n tributary unit in the range of 2-127.

填充单元86,用于根据所述划分单元确定的OPUk净荷区域的支路单元数量n,在OPUk净荷区域每行中相对应的固定字节位置上进行无效数据填充, 使得OPUk净荷区每行未被填充的字节数是支路单元数量n的整倍数。 Filling unit 86, according to the number n of the branching unit dividing unit determines the OPUk payload area, invalid data is filled in the OPUk payload area in each row corresponding fixed byte positions, so that the OPUk payload area unfilled bytes per row number n is an integer multiple of tributary units.

本发明实施例还提供了一种光传送网客户信号接收设备,包括: Embodiments of the present invention further provides an optical transmission network client signal receiving apparatus, comprising:

接收单元91,用于接收包含光通道净荷单元OPUk的光通道数据单元ODUk; The receiving unit 91 for receiving an optical channel data units ODUk containing the OPUk optical channel payload unit;

第一解析单元92,用于解析得到ODTUan-k,具体包括:提取OPUk开销字节中标识的支路单元数,构造结构为4n x int ( 3808/n )个字节ODTUan-k 帧结构,并解析得到所述ODTUan-k;其中n为支路单元数; A first parsing unit 92 for parsing the obtained ODTUan-k, comprises: extracting the number of tributary unit identified OPUk overhead byte, the structure is configured to 4n x int (3808 / n) bytes ODTUan-k frame structure, parsed and the ODTUan-k; wherein n is a number of tributary units;

第二解析单元93,还原客户信号时钟;以及根据客户信号时钟,按照ODTUan-k净荷区域映射的客户信号以及OPUk开销字节中标识的客户信号类型还原得到客户信号数据流。 The second parsing unit 93, reducing the client signal clock; according to the client signal clock and, according to the client signal, and OPUk overhead bytes of the client signal type identified in the ODTUan-k payload area reduction resulting mapped client signal data stream.

具体的,若客户信号采用CBR映射方法被映射到OPUk帧,则接收设备各单元的功能具体为:接收单元91,用于接收包含光通道净荷单元OPUk的光通道数据单元 Specifically, if the client signal frame using the OPUk is mapped to CBR mapping method, the receiving functions of the respective units of the device is specifically: a receiving unit 91, for receiving the optical channel payload unit comprising an optical channel data unit OPUk

ODUk; ODUk;

第一解析单元92,用于解析得到ODTUan-k,具体包括:提取OPUk开销字节中标识的支路单元数n,构造结构为4nx int( 3808/n )个字节ODTUan-k 帧结构,根据OPUk开销字节中标识的客户信号的字节数与支路单元的对应关系解析得到所述ODTUan-k;在支路单元进行捆绑应用的情况下,相应的, 第一解析单元,提取OPUk开销字节中标识的支路单元数n,并进一步结合OPUk开销字节中标识的支路单元群组标识,构造结构为4n x int ( 3808/n) x 个字节的ODTUan-k帧结构,其中x表示群组标识相同的支路单元数。 A first parsing unit 92 for parsing the obtained ODTUan-k, comprises: the number of OPUk overhead byte tributary unit identified extracting n, the structure is configured 4nx int (3808 / n) bytes ODTUan-k frame structure, the corresponding relationship between the number of bytes of the client signal branching unit OPUk overhead byte obtained by parsing the identified ODTUan-k; the case in the application bundle tributary unit, a respective first parsing unit, extracts OPUk tributary units n overhead bytes identified, and further binding tributary unit group identifier, OPUk overhead byte is configured in structure as identified 4n x int (3808 / n) x bytes of the ODTUan-k frame structure , where x represents the same number of tributary unit group identifier.

第二解析单元93,根据ODTUan-k开销字节中的客户信号字节数,还原客户信号时钟;以及根据客户信号时钟,按照ODTUan-k净荷区域映射的客户信号以及OPUk开销字节中标识的客户信号类型还原得到客户信号数据流。 The second parsing unit 93, in accordance with the number of bytes of the client signal in the ODTUan-k overhead bytes of the client signal clock reduction; and according to the client signal clock according to the mapping ODTUan-k payload area of ​​the OPUk overhead byte and the client signal is identified the client signal type is reduced to give the client signal data stream.

综上所述,本发明实施例根据不同客户信号速率,灵活划分和分配支路单元(Tributary Slot)来提高对多种客户信号的高效灵活传送,并利用ITU-T SGI 5 G,709Iivinglist中的自适应CBR业务的映射方法(Agnostic CBR mapping),实现对多种不同速率客户信号的CBR透明传送。 In summary, embodiments of the present invention depending on the client signal rate, flexible allocation division and branching unit (Tributary Slot) to increase more efficient and flexible transmission of client signals, using ITU-T SGI 5 G, 709Iivinglist of the agnostic CBR mapping method (Agnostic CBR mapping), for transparently transmitting various client signals of different rates of CBR. 从而避免了分别为每个不同速率客户信号定义固定的映射方式,本发明实施例有效的接入目前存在的各种客户信号,并对将来出现的新速率的客户信号有很好的适应性, 改善了OTN标准体制对客户信号的适应能力,增强了OTN设备对接入客户信号的灵活适应能力,提高了线路带宽的利用率。 Thus avoiding a separately for each different rate of the client signal defining a fixed mapping mode, various client signals existing access effective embodiment of the present invention, new and future occurrence rate client signal have good adaptability, improve the ability to adapt the system to the standard OTN client signals, and enhance the ability to flexibly adapt to the OTN device to access client signals, improving the utilization of network bandwidth.

对于划分支路单元的OPUk TS-n结构,每个支路单元既可以使用自适应CBR映射方法,也可以4吏用其他如G.709已经定义的GFP或ATM信元等映射方法,或者他们的组合。 For the OPUk TS-n structure is divided tributary unit, each branch unit may be used agnostic CBR mapping method, 4 may be other officials GFP or ATM cell and the like as G.709 mapping method already defined, or they The combination. 这时可以进一步定义PSI[2m]既指示业务类型还同时指示映射方式,如表7。 At this time may be further defined PSI [2m] indicates both the service type indication map while further embodiment, as shown in Table 7.

表7<table>table see original document page 20</column></row> <table><table>table see original document page 21</column></row> <table> Table 7 <table> table see original document page 20 </ column> </ row> <table> <table> table see original document page 21 </ column> </ row> <table>

当某一支路单元采用GFP或ATM信元映射方式时,因为他们会使用插入空闲帧(IDLE帧)的方法来补偿速率偏差,所以该支路单元对应的Cbyte 字节不必再使用,可以被填充为保留字节,其他帧结构字节定义可以保持不变。 When a tributary unit using GFP or ATM cell mapping mode, because they Method idle frames (IDLE frame) to be used to compensate for the rate deviation of insertion, so this branch unit corresponding Cbyte byte no longer used, can be padding bytes are reserved, the other byte defines the frame structure may remain unchanged. 采用GFP或ATM信元映射方式的光数据支路单元ODTUn-k的帧结构如图10所示,原来的Cbyte字节位置变为固定填充(Fix stuff)字节。 Using GFP or ATM cell mapping mode of an optical data tributary unit frame configuration ODTUn-k as shown, the original position becomes fixed stuff byte Cbyte (Fix stuff) 10 bytes.

采用GFP方法映射数据包到ODTUn-k中,首先按照G.7041定义的方法, 把数据包封装为GFP帧,然后把GFP帧的每个字节放入ODTUn-k结构中, GFP帧与ODTUn-k之间的时钟偏差,通过空闲帧(IDLE )来调整。 The method of using the GFP mapping data packet to ODTUn-k, the first method according to G.7041 definition, the data packet is encapsulated GFP frame, then each byte of the GFP frame into ODTUn-k arrangement, with GFP frame ODTUn clock skew between -k, adjusted by the idle frames (iDLE).

ATM信元映射方法与GFP帧映射类似,只是不需要4巴ATM信元封装为GFP帧。 ATM cell mapping method is similar to the GFP frame mapping, but does not need to 4 bar ATM cells encapsulated into GFP frames.

采用GFP或ATM映射方式的光数据支路单元ODTUn-k到OPUk的方法与采用自动适应方法的ODTUan-k到OPUk的映射方法相同,这样采用GFP 或ATM映射方法的支路单元对应的原Cbyte位置为固定填充字节。 OPUk mapping method of the same optical data tributary unit ODTUn-k METHODS GFP or ATM mapping mode to the OPUk with automatic adaptation of ODTUan-k, using this GFP or ATM mapping method corresponding to the original tributary units Cbyte fixed stuff byte location. 如图11 所示的11个支路单元中,TS2采用GFP映射方式,其他采用自适应CBR映射方式。 The branching unit 11 shown in FIG. 11, TS2 using GFP mapping mode, the other adaptive CBR mapping mode.

以上对本发明实施例所提供的光传送网中客户信号传送方法及相关设备进行了详细介绍,本文中应用了具体个例对本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的实现方式;同时,对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围上可能会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。 Described described in detail OTN embodiment provided by the client signal transmitting method and related apparatus the above embodiment of the present invention described herein through specific examples of the principles and embodiments of the invention are set forth in the above embodiments except for aid in understanding the implementation of the invention; the same time, those of ordinary skill in the art, according to the ideas of the present invention, there may be changes in the embodiments and application scope of, the above, the present specification shall not be as limiting the present invention.

Claims (16)

  1. 1、一种光传送网中客户信号传送方法,其特征在于: 获取客户信号,将客户信号映射到预置在光通道净荷单元OPUk净荷区域的支路单元;分别标识各路客户信号所对应的支路单元;标识OPUk净荷区域的支路单元数;标识支路单元中所映射的客户信号类型; 发送包含OPUk的光通道数据单元ODUk到OTN网络。 1, an optical transport network client signal transmitting method, comprising: acquiring the client signal, the client signal is mapped to the optical channel payload unit at a preset OPUk payload area tributary unit; client signals respectively identifying the brightest corresponding tributary unit; tributary unit identification number of the OPUk payload area; client signal in tributary unit type identifier is mapped; optical channel data units ODUk containing the OPUk to the OTN transmission network.
  2. 2、 如权利要求1所述的方法,所述OPUk净荷区域每行3808个字节, 其特征在于:根据客户信号类型确定OPUk净荷区域中的支路单元数;根据所述的支路单元数预置支路单元,每一支路单元以所述支路单元数为周期占用OPUk净荷区域的字节。 According to the branch; the number of tributary units OPUk payload area according to the determined client signal type: 2. The method of claim 1, wherein the OPUk payload area of ​​3808 bytes per row, characterized in that a preset number of unit cells branches, each branch unit is the number of the tributary unit cycle occupies the OPUk payload area bytes.
  3. 3、 如权利要求1或2所述的方法,其特征在于:在OPUk净荷区域每行中相对应的固定字节位置上进行无效数据填充, 使得OPUk净荷区每行未被填充的字节数是支路单元数量的整倍数。 Filling invalid data words in each row corresponding fixed byte positions in the OPUk payload area, so that each row of the OPUk payload area unfilled: 3, or the method as claimed in claim 1 or 2, characterized in that section number is an integral multiple of the number of tributary units.
  4. 4、 如权利要求1或2所述的方法,其特征在于:在预置的OPUk支路单元之间,设置群组,被设置到同一个群组的支路单元共同组成一个通道传送客户信号;并利用OPUk开销字节标识群组分配状态。 4. The method of claim 1 or claim 2, wherein: between a preset OPUk tributary unit, setting group, is set to the same tributary unit group composed of a client signal transmission channel ; OPUk overhead bytes using a group identifier allocated.
  5. 5、 如权利要求1所述的方法,其特征在于,所述映射客户信号到OPUk 支路单元的映射方法为采用自适应CBR映射方法,包括:将一路客户信号的字节数值映射到结构为4nxint ( 3808/n)个字节的当前帧的光通道数据支路单元ODTUan-k的开销字节;其中n为支路单元数;根据前一帧ODTUan-k开销字节中映射的客户信号字节数,将该路客户信号的每个字节映射到当前帧ODTUan-k的净荷区域;将ODTUan-k中净荷区域的每个字节分别映射到OPUk净荷区域中该路客户信号所对应的支路单元的每个字节中;以及将ODTUan-k开销字节中的客户信号字节数值映射到OPUk的开销字节中。 5. The method as claimed in claim 1, characterized in that, the mapping method of mapping the client signal to the OPUk tributary unit for adaptive CBR mapping method, comprising: mapping a client signal byte value all the way to the structure 4nxint (3808 / n) bytes of overhead bytes optical channel data tributary unit ODTUan-k of the current frame; wherein n is the number of tributary units; customer before an ODTUan-k overhead bytes mapped signal number of bytes, each byte of this client signal path mapped to the payload area of ​​the current frame ODTUan-k; each byte in the ODTUan-k payload area are mapped to the OPUk payload area in the passage client each byte signal corresponding tributary unit; and a client signal byte value ODTUan-k overhead bytes are mapped to the OPUk overhead byte.
  6. 6、 如权利要求1所述的方法,其特征在于,所述映射客户信号到OPUk 支路单元的映射方法为:采用GFP映射方法,或者ATM信元映射方法将客户信号映射到支路单元。 6. The method as claimed in claim 1, characterized in that, the mapping method of mapping the client signal to the OPUk tributary units is: The GFP mapping method, or ATM cell mapping method of mapping the client signal to the branch unit.
  7. 7、 如权利要求5或6所述的方法,其特征在于:进一步采用OPUk开销字节标识客户信号到支路单元的映射方法。 7. The method as claimed in claim 5 or claim 6, wherein: the method further using the mapping OPUk overhead byte to identify the client signal to the branch unit.
  8. 8、 一种光传送网客户信号发送设备,其特征在于,包括: 客户信号获取单元,用于获取客户信号;映射单元,用于执行将信号映射到光通道净荷单元OPUk,包括将客户信号映射到预置在光通道净荷单元OPUk净荷区域的支路单元;OPUk构造单元,用于在OPUk开销字节添加控制标识,包括分别标识各路客户信号所对应的支路单元;标识OPUk净荷区域的支路单元数;标识支路单元中所映射的客户信号类型;发送单元,用于发送包含OPUk的光通道数据单元ODUk到OTN网络。 8, an optical transport network client signal transmitting device, characterized by comprising: a client signal obtaining unit, configured to acquire a client signal; mapping unit for performing signal mapping The OPUk to the optical channel payload unit, comprising client signal mapped to the optical channel payload unit at a preset OPUk payload area tributary unit; OPUk constructing unit, configured to add a control identifier OPUk overhead byte, each group comprising a respective tributary unit identification signal corresponding to the client; identifying OPUk tributary unit payload area number; client signal type identifier mapped tributary unit; transmitting means for transmitting an optical channel data unit comprising ODUk OPUk to the OTN network.
  9. 9、 如权利要求8所述的设备,其特征在于,还包括:群组划分单元,用于在划定的OPUk支路单元之间,设置群组,被设置到同一个群组的支路单元共同组成一个通道传送客户信号;以及,OPUk构造单元,所述添加标识还包括利用OPUk开销字节标识群组分配状态。 9. The apparatus as claimed in claim 8, characterized in that, further comprising: a grouping unit, configured to delineate between OPUk tributary unit is provided a group, the branch is set to the same group channel transport unit together constitute a client signal; and, OPUk constructing unit, further comprising using the identifier added OPUk overhead byte identification group allocation status.
  10. 10、 如权利要求8所述的设备,其特征在于,还包括:划分单元,用于确定OPUk净荷区域中的支路单元数;每一支路单元以所述支路单元数为周期占用OPUk净荷区域的字节。 10. The apparatus as claimed in claim 8, characterized in that, further comprising: dividing means for determining the number of OPUk tributary unit payload area; each branch unit to the branch unit is the number of cycles occupied OPUk payload area bytes.
  11. 11、 如权利要求10所述的设备,其特征在于,还包括:填充单元,用于根据所述划分单元确定的OPUk净荷区域的支路单元数量,在OPUk净荷区域每行中相对应的固定字节位置上进行无效数据填充, 使得OPUk净荷区每行未被填充的字节数是支路单元数量的整倍数。 11. The apparatus according to claim 10, characterized in that, further comprising: a filling unit, the number of the OPUk payload area according to the division unit determines the branching unit in the OPUk payload area corresponding to each row the number of bytes of fixed byte positions filled invalid data, so that each row of the OPUk payload area is unfilled integral multiples of the number of tributary units.
  12. 12、 如权利要求8所述的设备,其特征在于:所述映射单元,采用自适应CBR映射方法,或者GFP映射方法,或者ATM信元映射方法将客户信号映射到支路单元。 12. The apparatus as claimed in claim 8, wherein: said mapping unit, the agnostic CBR mapping method uses, or GFP mapping method or ATM cell mapping method of mapping the client signal to the branch unit.
  13. 13、 如权利要求12所述的设备,其特征在于:OPUk构造单元,所述添加标识还包括采用OPUk开销字节标识客户信号到支路单元的映射方法。 13. The apparatus as claimed in claim 12, wherein: OPUk constructing unit, add the identification method further comprising using the mapping OPUk overhead byte to identify the client signal to the branch unit.
  14. 14、 一种光传送网客户信号接收设备,其特征在于,包括:接收单元,用于接收包含光通道净荷单元OPUk的光通道数据单元ODUk;第一解析单元,用于解析得到ODTUan-k,具体包括:提取OPUk开销字节中标识的支路单元数,构造结构为4nxint (3808/n)个字节ODTUan-k帧结构,并解析得到ODTUan-k;其中n为支路单元数;第二解析单元,还原客户信号时钟;以及根据客户信号时钟,按照ODTUan-k净荷区域映射的客户信号以及OPUk开销字节中标识的客户信号类型还原得到客户信号数据流。 14, an optical transport network client signal receiving apparatus comprising: receiving means for receiving optical channel data unit comprising an optical channel payload unit OPUk ODUk; a first parsing unit configured to parse ODTUan-k to give comprises: extracting the number of tributary unit identified OPUk overhead byte, the structure is configured 4nxint (3808 / n) bytes ODTUan-k frame structure and the parsed ODTUan-k; wherein n is a number of tributary units; second parsing means, to restore the client signal clock; according to the client signal clock and, according to the client signal, and OPUk overhead bytes of the client signal type identified in the ODTUan-k payload area reduction resulting mapped client signal data stream.
  15. 15、 如权利要求14所述的设备,其特征在于,所述第一解析单元,提取OPUk开销字节中标识的支路单元数,并进一步结合OPUk开销字节中标识的支路单元群组标识,构造结构为4nxint (3808/n) x个字节的ODTUan-k帧结构,其中x表示群组标识相同的支路单元数。 15. The apparatus as claimed in claim 14, wherein the first analyzing unit extracts the number of OPUk overhead byte of the tributary unit identified, and further tributary unit group in conjunction OPUk overhead byte identified identification, the structure is configured 4nxint (3808 / n) ODTUan-k frame structure of x bytes, where x represents the same group identification number of tributary units.
  16. 16、 如权利要求14所述的设备,其特征在于: OPUk净荷区域的支路单元数值范围为2至127。 16. The apparatus according to claim 14, wherein: tributary unit OPUk payload area values ​​in the range of 2-127.
CN 200710090273 2007-04-17 2007-04-17 Customer signal transmission method in optical transmitting network and related equipment CN101291179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200710090273 CN101291179B (en) 2007-04-17 2007-04-17 Customer signal transmission method in optical transmitting network and related equipment

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
CN 200710090273 CN101291179B (en) 2007-04-17 2007-04-17 Customer signal transmission method in optical transmitting network and related equipment
EP20160158592 EP3059888A1 (en) 2007-04-17 2008-04-16 Method and devices for transmitting client signals in optical transport network
EP20080734076 EP2148476B1 (en) 2007-04-17 2008-04-16 A method for transporting the client signal in the optical transport network and an equipment thereof
AT08734076T AT512516T (en) 2007-04-17 2008-04-16 A method for transporting the client signal in the optical transport network and apparatus for
PCT/CN2008/070718 WO2008125060A1 (en) 2007-04-17 2008-04-16 A method for transporting the client signal in the optical transport network and an equipment thereof
PT08734076T PT2148476E (en) 2007-04-17 2008-04-16 A method for transporting the client signal in the optical transport network and an equipment thereof
ES08734076T ES2365964T3 (en) 2007-04-17 2008-04-16 Method and devices for transmitting client signals in an optical transport network.
EP20110168964 EP2365652B1 (en) 2007-04-17 2008-04-16 Method and devices for transmitting client signals in optical transport network
ES11168964T ES2525158T3 (en) 2007-04-17 2008-04-16 Method and devices for transmitting client signals in an optical transport network
RU2009142210A RU2421925C1 (en) 2007-04-17 2008-04-16 Method and devices to send client signals in optical transport network
EP20140175177 EP2811673B1 (en) 2007-04-17 2008-04-16 Method and devices for transmitting client signals in optical transport network
DK08734076T DK2148476T3 (en) 2007-04-17 2008-04-16 A method for the transport of client signals in the optical transport network and an equipment therefor
US12622973 US20100067905A1 (en) 2007-04-17 2009-11-20 Method and devices for transmitting client signals in optical transport network
US13281280 US8824505B2 (en) 2007-04-17 2011-10-25 Method and apparatus for transporting client signals in an optical transport network
US14339734 US9819431B2 (en) 2007-04-17 2014-07-24 Method and apparatus for transporting client signals in an optical transport network
US15723991 US20180091246A1 (en) 2007-04-17 2017-10-03 Method and apparatus for transporting client signals in an optical transport network

Publications (2)

Publication Number Publication Date
CN101291179A true true CN101291179A (en) 2008-10-22
CN101291179B CN101291179B (en) 2011-03-23

Family

ID=39863278

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200710090273 CN101291179B (en) 2007-04-17 2007-04-17 Customer signal transmission method in optical transmitting network and related equipment

Country Status (7)

Country Link
US (4) US20100067905A1 (en)
EP (4) EP2811673B1 (en)
CN (1) CN101291179B (en)
DK (1) DK2148476T3 (en)
ES (2) ES2365964T3 (en)
RU (1) RU2421925C1 (en)
WO (1) WO2008125060A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010048791A1 (en) * 2008-10-27 2010-05-06 中兴通讯股份有限公司 Method and apparatus for transmitting physical layer operations administration and maintenance message
WO2010091604A1 (en) * 2009-02-10 2010-08-19 华为技术有限公司 Method and device for implementing mapping and de-mapping of client signal
CN101854220A (en) * 2009-04-01 2010-10-06 华为技术有限公司 Method and device for transmitting and receiving service data
WO2010142074A1 (en) * 2009-06-09 2010-12-16 华为技术有限公司 Lossless adjustment method of oduflex channel bandwidth and oduflex channel
WO2011026417A1 (en) * 2009-09-04 2011-03-10 中兴通讯股份有限公司 Method and device for indicating client signal fail
WO2011029247A1 (en) * 2009-09-10 2011-03-17 中兴通讯股份有限公司 Encoding/decoding method and apparatus
CN102088644A (en) * 2009-12-07 2011-06-08 富士通株式会社 Transmission apparatus and signal mapping method
CN101729370B (en) 2008-10-31 2011-09-14 华为技术有限公司 Method, device and system for adjusting bandwidth occupied by service
CN102196321A (en) * 2010-03-05 2011-09-21 华为技术有限公司 Method for transmitting 100GE (100gigabit Ethernet) data in OTN (Optical Transport Network) and data sending device
CN102281477A (en) * 2011-08-18 2011-12-14 中兴通讯股份有限公司 A method and apparatus for mapping and demapping operations otn realization
CN102546023A (en) * 2010-12-15 2012-07-04 日本电气株式会社 The optical transmission system
WO2012151890A1 (en) * 2011-05-09 2012-11-15 中兴通讯股份有限公司 Service mapping method and device
CN102884808A (en) * 2012-06-19 2013-01-16 华为技术有限公司 Method and apparatus for distributing optical spectrum bandwidth resources
CN103973265B (en) * 2009-06-09 2017-01-18 华为技术有限公司 One kind of channel bandwidth ODUflex lossless adjustment method and OTN
CN107408997A (en) * 2015-03-06 2017-11-28 阿尔卡特朗讯 Transmission and receiving methods

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101291179B (en) * 2007-04-17 2011-03-23 华为技术有限公司 Customer signal transmission method in optical transmitting network and related equipment
US8359525B2 (en) * 2009-03-06 2013-01-22 Electronics And Telecommunications Research Institute Method and apparatus for transmitting data in optical transport network
JP5251620B2 (en) * 2009-03-09 2013-07-31 富士通株式会社 Frame generating apparatus and frame generating method
CN101834688B (en) 2009-03-09 2011-08-31 华为技术有限公司 Method and device for mapping and demapping in optical transport network
EP2460290B1 (en) * 2009-09-17 2016-06-08 Huawei Technologies Co., Ltd. Dynamic hitless resizing in optical transport networks
JP2011146917A (en) * 2010-01-14 2011-07-28 Fujitsu Ltd Interface device, demultiplexing method, and multiplexing method
JP5433078B2 (en) * 2010-05-26 2014-03-05 富士通株式会社 Optical transport network transmission device and a stuff control method
JP5690938B2 (en) 2010-09-02 2015-03-25 テレフオンアクチーボラゲット エル エム エリクソン(パブル) Method for transmitting traffic in a communication network and the communication network device
CN102014316B (en) * 2010-10-12 2013-09-11 华为技术有限公司 Method and device for processing data
JP5796327B2 (en) * 2011-04-07 2015-10-21 富士通株式会社 The optical transmission device and an optical transmission method
US8494363B2 (en) * 2011-04-21 2013-07-23 Cortina Systems, Inc. Signal format conversion apparatus and methods
US8934479B2 (en) * 2011-10-28 2015-01-13 Infinera Corporation Super optical channel transport unit signal supported by multiple wavelengths
KR20130116415A (en) * 2012-03-14 2013-10-24 한국전자통신연구원 Method and apparatus for protection switching in optical transport network
CN103795605B (en) * 2014-01-14 2017-01-11 烽火通信科技股份有限公司 Method and system for Ethernet signal into the payload otn of
US10079641B1 (en) * 2014-04-01 2018-09-18 Sprint Spectrum, L.P. Systems and methods of transporting data over an optical transport network
KR101819269B1 (en) * 2014-06-27 2018-02-28 한국전자통신연구원 Apparatus and Method for OTN Traffic Management in Packet-Circuit Integrated Transport System based on Integrated Fabric Switch
CN105871467B (en) * 2015-01-19 2018-03-23 中国移动通信集团公司 An optical network system and an optical network system connecting means adaptively
US20170288849A1 (en) * 2016-04-01 2017-10-05 Ipg Photonics Corporation Transparent clocking in a cross connect system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040013129A1 (en) * 2001-08-07 2004-01-22 Xiaojun Fang Method and protocol for packetized optical channel based on digital wrapper
US20030048813A1 (en) * 2001-09-05 2003-03-13 Optix Networks Inc. Method for mapping and multiplexing constant bit rate signals into an optical transport network frame
US7286487B2 (en) * 2002-11-18 2007-10-23 Infinera Corporation Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same
US7787460B2 (en) 2003-10-08 2010-08-31 Ciena Corporation System and method for switching packet traffic over an optical transport network
CN101006668B (en) * 2004-06-16 2012-03-21 英飞聂拉股份有限公司 Method and device for transport of client signals of any client payload and format type
CN100349390C (en) * 2004-08-11 2007-11-14 华为技术有限公司 Method for transmitting low-speed service signal in optical transport network and its device
CN100590997C (en) 2004-11-02 2010-02-17 华为技术有限公司 Spending processing method for service integration in OTN network
DE602004025476D1 (en) * 2004-11-12 2010-03-25 Alcatel Lucent Method and apparatus for transporting a client signal through an optical transport network (OTN)
CN100373847C (en) * 2004-12-14 2008-03-05 华为技术有限公司 Method for transmitting low-speed service signal in OTN
CN1791057B (en) 2004-12-15 2011-06-15 华为技术有限公司 Method for transmitting data service in OTN and its device
RU2289207C1 (en) 2005-05-13 2006-12-10 Закрытое акционерное общество ЦНИТИ "Техномаш-ВОС" (ЗАО ЦНИТИ "Техномаш-ВОС") Interface for transferring discrete information through optical channel
US7664139B2 (en) * 2005-09-16 2010-02-16 Cisco Technology, Inc. Method and apparatus for using stuffing bytes over a G.709 signal to carry multiple streams
JP2007096822A (en) * 2005-09-29 2007-04-12 Fujitsu Ltd Signal multiplxer and its stuff control method
US7809017B2 (en) * 2006-09-21 2010-10-05 Nortel Networks Limited Multi-rate transparent MUX for optical communications networks
CN101291179B (en) * 2007-04-17 2011-03-23 华为技术有限公司 Customer signal transmission method in optical transmitting network and related equipment

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010048791A1 (en) * 2008-10-27 2010-05-06 中兴通讯股份有限公司 Method and apparatus for transmitting physical layer operations administration and maintenance message
CN101729370B (en) 2008-10-31 2011-09-14 华为技术有限公司 Method, device and system for adjusting bandwidth occupied by service
JP2013258769A (en) * 2009-02-10 2013-12-26 Huawei Technologies Co Ltd Mapping and demapping method and device of client signal
WO2010091604A1 (en) * 2009-02-10 2010-08-19 华为技术有限公司 Method and device for implementing mapping and de-mapping of client signal
RU2485687C2 (en) * 2009-02-10 2013-06-20 Хуавэй Текнолоджиз Ко., Лтд. Method and device for mapping and reverse mapping of client signal
US7894482B1 (en) 2009-02-10 2011-02-22 Huawei Technologies Co., Ltd. Method and device for mapping and demapping a client signal
JP2013255286A (en) * 2009-02-10 2013-12-19 Huawei Technologies Co Ltd Method and device for mapping and demapping client signal
JP2012516588A (en) * 2009-02-10 2012-07-19 華為技術有限公司Huawei Technologies Co.,Ltd. Client signal mapping and demapping methods and apparatus
EP2388964A4 (en) * 2009-04-01 2012-01-18 Huawei Tech Co Ltd Method and device for transmitting and receiving service data
CN101854220A (en) * 2009-04-01 2010-10-06 华为技术有限公司 Method and device for transmitting and receiving service data
EP2388964A1 (en) * 2009-04-01 2011-11-23 Huawei Technologies Co., Ltd. Method and device for transmitting and receiving service data
WO2010111958A1 (en) * 2009-04-01 2010-10-07 华为技术有限公司 Method and device for transmitting and receiving service data
CN103973265B (en) * 2009-06-09 2017-01-18 华为技术有限公司 One kind of channel bandwidth ODUflex lossless adjustment method and OTN
US9866497B2 (en) 2009-06-09 2018-01-09 Huawei Technologies Co., Ltd. Lossless adjustment method of ODUflex channel bandwidth and ODUflex channel
WO2010142074A1 (en) * 2009-06-09 2010-12-16 华为技术有限公司 Lossless adjustment method of oduflex channel bandwidth and oduflex channel
US9209922B2 (en) 2009-06-09 2015-12-08 Huawei Technologies Co., Ltd. Lossless adjustment method of ODUflex channel bandwidth and ODUflex channel
WO2011026417A1 (en) * 2009-09-04 2011-03-10 中兴通讯股份有限公司 Method and device for indicating client signal fail
CN101692633B (en) 2009-09-10 2012-12-19 中兴通讯股份有限公司 Coding/decoding methods and devices
WO2011029247A1 (en) * 2009-09-10 2011-03-17 中兴通讯股份有限公司 Encoding/decoding method and apparatus
CN102088644A (en) * 2009-12-07 2011-06-08 富士通株式会社 Transmission apparatus and signal mapping method
US8588256B2 (en) 2009-12-07 2013-11-19 Fujitsu Limited Transmission apparatus and signal mapping method
CN102088644B (en) 2009-12-07 2014-04-30 富士通株式会社 Transmission apparatus and signal mapping method
CN102196321A (en) * 2010-03-05 2011-09-21 华为技术有限公司 Method for transmitting 100GE (100gigabit Ethernet) data in OTN (Optical Transport Network) and data sending device
CN102546023A (en) * 2010-12-15 2012-07-04 日本电气株式会社 The optical transmission system
WO2012151890A1 (en) * 2011-05-09 2012-11-15 中兴通讯股份有限公司 Service mapping method and device
CN102281477B (en) * 2011-08-18 2018-02-16 中兴通讯股份有限公司 A method and apparatus for mapping and demapping operations otn realization
CN102281477A (en) * 2011-08-18 2011-12-14 中兴通讯股份有限公司 A method and apparatus for mapping and demapping operations otn realization
WO2013189034A1 (en) * 2012-06-19 2013-12-27 华为技术有限公司 Method and device for allocating optical frequency spectrum bandwidth resource
US9496957B2 (en) 2012-06-19 2016-11-15 Huawei Technologies Co., Ltd. Method and apparatus for allocating optical spectrum bandwidth resources
CN102884808A (en) * 2012-06-19 2013-01-16 华为技术有限公司 Method and apparatus for distributing optical spectrum bandwidth resources
CN102884808B (en) * 2012-06-19 2015-11-25 华为技术有限公司 A method and apparatus for allocating bandwidth resources of the optical spectrum
CN107408997A (en) * 2015-03-06 2017-11-28 阿尔卡特朗讯 Transmission and receiving methods

Also Published As

Publication number Publication date Type
EP2148476A1 (en) 2010-01-27 application
ES2525158T3 (en) 2014-12-18 grant
ES2365964T3 (en) 2011-10-14 grant
EP2811673A1 (en) 2014-12-10 application
US20120039609A1 (en) 2012-02-16 application
EP2811673B1 (en) 2016-04-06 grant
US20180091246A1 (en) 2018-03-29 application
US9819431B2 (en) 2017-11-14 grant
EP2365652B1 (en) 2014-09-10 grant
DK2148476T3 (en) 2011-08-22 grant
WO2008125060A1 (en) 2008-10-23 application
EP2365652A1 (en) 2011-09-14 application
EP3059888A1 (en) 2016-08-24 application
CN101291179B (en) 2011-03-23 grant
US8824505B2 (en) 2014-09-02 grant
US20140334503A1 (en) 2014-11-13 application
US20100067905A1 (en) 2010-03-18 application
EP2148476B1 (en) 2011-06-08 grant
RU2421925C1 (en) 2011-06-20 grant
EP2148476A4 (en) 2010-09-01 application

Similar Documents

Publication Publication Date Title
US20040156325A1 (en) Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same
US20040062277A1 (en) Method and apparatus for tunnelling data in a network
US20070116061A1 (en) Externally synchronized optical transport network systems and associated methods
US20070076769A1 (en) Method and apparatus for transmitting low-rate traffic signal in optical transport network
US20070264015A1 (en) Uniform Switching System and Method for Synchronous Optical Network and Optical Transport Network
US20120002965A1 (en) Method for data transmission in an optical transport network
US20070104485A1 (en) Device and method for transmitting data traffic in optical transport network
US20110286744A1 (en) Method and apparatus for transmitting packet in optical transport network
US20090074410A1 (en) Method and apparatus for synchronous cross-connect switching in optical transport network
US6731656B1 (en) Communication system
US20070248121A1 (en) Method and Device for Transmitting Low Rate Signals Over an Optical Transport Network
US20080107418A1 (en) Method And Device For Signal Trasporting
CN1770673A (en) Spending processing method for service integration in OTN network
CN101217334A (en) A method and the corresponding device of low bit rate service signal in optical transport network transmission
CN102820951A (en) Method and device for transmitting and receiving client signal in optical transport network
CN101834688A (en) Method and device for mapping and demapping in optical transport network
US20080124079A1 (en) Method and apparatus for transporting local area network signals in optical transport network
CN1773898A (en) Method and apparatus for transporting a client layer signal over an optical transport network (OTN)
CN101841741A (en) Method for transmitting signal of optical channel transmission unit and device
CN101959083A (en) Data processing method and equipment
JP2012004839A (en) Digital transmission system and digital transmission method
US20050147121A1 (en) Method and apparatus to double LAN service unit bandwidth
US20120039609A1 (en) Method and apparatus for transporting client signals in an optical transport network
CN101155016A (en) Method for time slot partition and overhead processing of optical payload unit in light transmission network
US7515605B2 (en) Efficient transport of TDM services over packet networks

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model